Abstract
Amount of power generated by renewable energy at a particular site depends on its atmosphere as well as time of day. In this paper, a potential energy storage system which is effective for renewable energy leveling in home application has been presented. The system consists of weight lifting mechanisms as well as power generators driven by excess potential energy. Two types of experimental apparatus have been considered for feasibility study. Combined unit type storage for both lifting and generating functions is relatively compact but has difficulties in power design optimization. For split function type storage, a rotor-generator mechanism with multi-dynamo arrangement has been developed. The experimental result shows that the power conversion rate of the split type generator increase almost 5 times compared to the combined type storage case.